Ашық сабақ Жылу құбылыстары

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Lesson-game on the topic "Thermal phenomena" The objectives of the lesson: the repetition, generalization and deepening of the studied material; The development of cognitive and creative abilities, the ability to perform tasks independently; Formation of teamwork skills in combination with students' autonomy.

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#2 слайд
1.Match Температура (Т, t°) — величина, характеризующая состояние термодинамического равновесия макроскопической системы и пропорциональная средней кинетической энергии частиц системы. The temperature (T, t °) is a quantity that characterizes the state of thermodynamic equilibrium of a macroscopic system and is proportional to the average kinetic energy of the particles of the system. Температура кипения - температура жидкости, при которой давление ее насыщенного пара равно или превышает внешнее давление. The boiling point is the temperature of the liquid at which the pressure of its saturated vapor is equal to or exceeds the external pressure. Температура плавления - температура, при которой кристаллическое вещество плавится. The melting point is the temperature at which the crystalline material melts. Тепловое движение - беспорядочное (хаотическое) движение микрочастиц, из которых состоят все тела. Thermal motion is the random (chaotic) movement of microparticles, of which all bodies are composed. Термометр - прибор для измерения температуры посредством контакта его с исследуемой средой. The thermometer is a device for measuring temperature by contacting it with the medium under study.

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#3 слайд
2.The figure shows:

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#4 слайд
3. Instruments and measurements 1. The figure shows a thermometer. Question: This device is called ------- and is designed to measure -------. (Answer: thermometer, measures the temperature of bodies). 2. The figure shows a liquid manometer. Question: This device is called ------- and is designed to measure -------. (Answer: liquid manometer, measures the pressure difference in the vessel and atmospheric pressure). 3. The figure shows an aneroid barometer. Question: This device measures ----------, the readings of the device are equal ---------. (Answer: atmospheric pressure, it is equal to 762 mm Hg). 4. Fig. Shows the scales and a set of weights 10r, 5g, 2g, 500mg, 100mg, 50mg. What is the mass of the body weighed in grams? (Answer: 17.65 g).

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#5 слайд
2. "Guessing" •1. It does not sink in the water, it does not burn in the fire. •(Answer: ice). •2. Without arms and legs, and into the house climbs. •(Answer: hot and cold). •3. Around the nose curls, but not in the hands. •(Answer: smell). • 4. •The planets are large, •Minimum for particles. •It is not measured by eye, •After all, she has many faces. •(Answer: mass).

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#6 слайд
4.The first contest. Brain Ring The team answers the teacher's question where they raised their hand more quickly. 1. Modern and old units for measuring the amount of heat. {Answer. Joule, calorie.) 2. The device used in many experiments on thermal phenomena. (Answer: Calorimeter.) 3. The worst conductor of heat. (Answer: Vacuum.) 4. A household vessel that protects water or food from heat exchange with the environment. (Answer: Thermos.)

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